Best of Both Worlds

We describe how OpenShift and Rancher use their different architectures to integrate KubeVirt, an extension used by Kubernetes to operate virtual machines in addition to containers.

Andreas Stolzenberger

Traditional enterprise virtualization clusters run on physical servers, on which Kubernetes clusters, whose nodes run on virtual machines (VMs), are then based. This kind of architecture is fraught with many drawbacks. On the one hand, two layers means additional license and subscription costs. On the other hand, both the VM and container layers virtualize resources such as networks and storage, which impairs performance in many installations. In some organizations, Kubernetes nodes already make up the majority of VMs in the cluster while the number of classic VM-based applications steadily decrease. The tide has turned from many VMs and a few containers to many containers and a few VMs. Kubernetes can take care of these remaining VMs with an add-on named KubeVirt, which allows you to remove the obsolete virtualization layer…

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ADMIN Network & Security (Digital) - 1 Issue, September/October 2024

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